TY - JOUR T1 - Semi-automatic creation and exploitation of competence ontologies for trend aware profiling, matching and planning JF - Knowledge Management & E-Learning: An International Journal KM&EL Y1 - 2013 A1 - Nils Malzahn A1 - Sabrina Ziebarth A1 - H. Ulrich Hoppe VL - 5 N1 - 00001 ER -